:root {
    --attendance-blue: #1976D2;
    --collection-green: #00FF41;
    --vasooli-red: #D61A3C;
    --tactical-black: #0A0A0A;
    --card-surface: rgba(255, 255, 255, 0.05);
    --gold: #FFD700;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--tactical-black);
    color: #FFFFFF;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Tactical Background Grid Pattern (Compose Canvas Equivalent) */
.tactical-grid {
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

.top-app-bar {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-tactical {
    border: none;
    border-radius: 16px;
    padding: 14px 20px;
    font-weight: 800;
    font-size: 14px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.15s ease, filter 0.2s ease;
}

.btn-tactical:active {
    transform: scale(0.97);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    padding: 16px;
}

.modal-content {
    background: #151515;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    width: 100%;
    max-width: 440px;
    padding: 24px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
}

.text-input-group {
    margin-bottom: 16px;
}

.text-input-group label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: #888;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.text-input-group input, .text-input-group textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 12px 14px;
    color: #fff;
    font-size: 14px;
    outline: none;
}

.text-input-group input:focus, .text-input-group textarea:focus {
    border-color: var(--attendance-blue);
}